Question

我在Spring启动应用程序中创建的自定义jpa实体监听器出现了一个奇怪的问题。我尝试使用Springs @Configurable机制来配置EntityListener（如弹簧AuditingEntityListener中所示）但是Spring在@EntityListeners中使用后立即拒绝识别我的侦听器 - 关于jpa实体的注释。如果没有在jpa实体上配置，则监听器将由Spring连接/配置。

我已经创建了一个带有junit-test的示例项目来演示问题： https://github.com/chrisi/aopconfig/find/master

@SpringBootApplication
@EnableSpringConfigured
@EnableLoadTimeWeaving
public class Application {

  public static void main(String[] args) throws Exception {
    SpringApplication.run(Application.class, args);
  }
}

EntityListener：

/**
 * This bean will NOT be instanciated by Spring but it should be configured by Spring
 * because of the {@link Configurable}-Annotation.
 * <p>
 * The configuration only works if the <code>UnmanagedBean</code> is not used as an <code>EntityListener</code>
 * via the {@link javax.persistence.EntityListeners}-Annotation.
 *
 * @see FooEntity
 */
@Configurable
public class UnmanagedBean {

  @Autowired
  private ManagedBean bean;

  public int getValue() {
    return bean.getValue();
  }
}

我希望在EntityListener / UnmanagedBean中注入Bean：

/**
 * This bean will be instanciated/managed by Spring and will be injected into the
 * {@link UnmanagedBean} in the case the <code>UnmanagedBean</code> is not used as an JPA-EntityListener.
 */
@Component
@Data
public class ManagedBean {
  private int value = 42;
}

应使用监听器的实体：

/**
 * This simple entity's only purpose is to demonstrate that as soon as
 * it is annotated with <code>@EntityListeners({UnmanagedBean.class})</code>
 * springs configurable mechanism will not longer work on the {@link UnmanagedBean}
 * and therefore the <code>ConfigurableTest.testConfigureUnmanagedBean()</code> fails.
 */
@Entity
@EntityListeners({UnmanagedBean.class}) // uncomment to make the test fail
public class FooEntity {

  @Id
  private Long id;

  private String bar;
}

最后，测试表明，只要使用Listener，接线就不能正常工作：

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = Application.class)
public class ConfigurableTest {

  /**
   * This test checks if the ManagedBean was injected into the UnmanagedBean
   * by Spring after it was created with <code>new</code>
   */
  @Test
  public void testConfigureUnmanagedBean() {
    UnmanagedBean edo = new UnmanagedBean();
    int val = edo.getValue();
    Assert.assertEquals(42, val);
  }
}

junit-test（EntityListener / ManagedBean的连线）一旦失败就会失败 <{1}}中的注释@EntityListeners({UnmanagedBean.class})已激活。

这是一个错误还是我错过了其他什么？

要运行测试，您必须在命令行上使用FooEntity，并在工作目录中提供jar文件。

这是＆＃34;浓缩＆＃34;我之前问过的一个问题的版本： @Configurable not recognized in SpringBoot Application

@ Configurable-Beans在Spring Boot中不使用JPA-EntityListeners

0 个答案: